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net: pcs: xpcs: clean up reading clause 73 link partner advertisement

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Read the clause 73 link partner advertisement in a loop and then
translate to the ethtool modes.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Russell King (Oracle) 2023-05-23 11:16:03 +01:00 committed by Jakub Kicinski
parent dad987484e
commit 6f7b89b45f
2 changed files with 17 additions and 25 deletions
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39
drivers/net/pcs/pcs-xpcs.c
View File

@ -487,7 +487,7 @@ static int xpcs_aneg_done_c73(struct dw_xpcs *xpcs,
return ret;
if (ret & MDIO_AN_STAT1_COMPLETE) {
ret = xpcs_read(xpcs, MDIO_MMD_AN, DW_SR_AN_LP_ABL1);
ret = xpcs_read(xpcs, MDIO_MMD_AN, MDIO_AN_LPA);
if (ret < 0)
return ret;
@ -506,7 +506,8 @@ static int xpcs_aneg_done_c73(struct dw_xpcs *xpcs,
static int xpcs_read_lpa_c73(struct dw_xpcs *xpcs,
struct phylink_link_state *state)
{
int ret;
u16 lpa[3];
int i, ret;
ret = xpcs_read(xpcs, MDIO_MMD_AN, MDIO_STAT1);
if (ret < 0)
@ -519,32 +520,26 @@ static int xpcs_read_lpa_c73(struct dw_xpcs *xpcs,
phylink_set(state->lp_advertising, Autoneg);
/* Clause 73 outcome */
ret = xpcs_read(xpcs, MDIO_MMD_AN, DW_SR_AN_LP_ABL3);
if (ret < 0)
return ret;
/* Read Clause 73 link partner advertisement */
for (i = ARRAY_SIZE(lpa); --i >= 0; ) {
ret = xpcs_read(xpcs, MDIO_MMD_AN, MDIO_AN_LPA + i);
if (ret < 0)
return ret;
if (ret & DW_C73_2500KX)
lpa[i] = ret;
}
if (lpa[2] & DW_C73_2500KX)
phylink_set(state->lp_advertising, 2500baseX_Full);
ret = xpcs_read(xpcs, MDIO_MMD_AN, DW_SR_AN_LP_ABL2);
if (ret < 0)
return ret;
if (ret & DW_C73_1000KX)
if (lpa[1] & DW_C73_1000KX)
phylink_set(state->lp_advertising, 1000baseKX_Full);
if (ret & DW_C73_10000KX4)
if (lpa[1] & DW_C73_10000KX4)
phylink_set(state->lp_advertising, 10000baseKX4_Full);
if (ret & DW_C73_10000KR)
if (lpa[1] & DW_C73_10000KR)
phylink_set(state->lp_advertising, 10000baseKR_Full);
ret = xpcs_read(xpcs, MDIO_MMD_AN, DW_SR_AN_LP_ABL1);
if (ret < 0)
return ret;
if (ret & DW_C73_PAUSE)
if (lpa[0] & DW_C73_PAUSE)
phylink_set(state->lp_advertising, Pause);
if (ret & DW_C73_ASYM_PAUSE)
if (lpa[0] & DW_C73_ASYM_PAUSE)
phylink_set(state->lp_advertising, Asym_Pause);
linkmode_and(state->lp_advertising, state->lp_advertising,

3
drivers/net/pcs/pcs-xpcs.h
View File

@ -32,9 +32,6 @@
#define DW_SR_AN_ADV1 0x10
#define DW_SR_AN_ADV2 0x11
#define DW_SR_AN_ADV3 0x12
#define DW_SR_AN_LP_ABL1 0x13
#define DW_SR_AN_LP_ABL2 0x14
#define DW_SR_AN_LP_ABL3 0x15
/* Clause 73 Defines */
/* AN_LP_ABL1 */